Karn, Scion of Urza [Dominaria Prerelease Promos] Island where X is the mana

where X is the mana value of the exiled creature

−3: Destroy target creature

and permanents are the chosen color in addition to their other colors

{T}: Target creature gains banding until end of turn

Karn, Scion of Urza [Dominaria Prerelease Promos] Island where X is the manaSet: Dominaria Prerelease Promos Type: Legendary Planeswalker Karn Rarity: Mythic Cost: {4} +1: Reveal the top two cards of your library. An opponent chooses one of them. Put that card into your hand and exile the other with a silver counter on it. 1: Put a card you own with a silver counter on it from exile into your hand. 2: Create a 0 0 colorless Construct artifact creature token with "This creature gets +1 +1 for each artifact you control."